Written by Peter J. Tomasi; Art by Patrick Gleason, Prentis Rollins and Drew Geraci; Cover by Patrick Gleason and Jesse Delperdang

Mongul strikes in this powerful new trade paperback collecting GREEN LANTERN CORPS #19-20 and #23-26! In the wake of The Sinestro Corps War, Mongul is amassing new power — and only The Green Lantern Corps can stand against him!